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net: pcnet: Add DM support

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With all the changes in place, add support for DM into the
pcnet driver.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Marek Vasut 2020-05-17 18:24:24 +02:00 committed by Daniel Schwierzeck
parent f5e7df58e0
commit 53019cf35b
1 changed files with 126 additions and 1 deletions
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127
drivers/net/pcnet.c
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@ -8,6 +8,7 @@
#include <common.h>
#include <cpu_func.h>
#include <dm.h>
#include <log.h>
#include <malloc.h>
#include <memalign.h>
@ -82,9 +83,14 @@ struct pcnet_priv {
/* Receive Buffer space */
unsigned char rx_buf[RX_RING_SIZE][PKT_BUF_SZ + 4];
struct pcnet_uncached_priv *uc;
#ifdef CONFIG_DM_ETH
struct udevice *dev;
const char *name;
#else
pci_dev_t dev;
void __iomem *iobase;
char *name;
#endif
void __iomem *iobase;
u8 *enetaddr;
u16 status;
int cur_rx;
@ -136,7 +142,11 @@ static inline pci_addr_t pcnet_virt_to_mem(struct pcnet_priv *lp, void *addr)
{
void *virt_addr = addr;
#ifdef CONFIG_DM_ETH
return dm_pci_virt_to_mem(lp->dev, virt_addr);
#else
return pci_virt_to_mem(lp->dev, virt_addr);
#endif
}
static struct pci_device_id supported[] = {
@ -447,6 +457,7 @@ static void pcnet_halt_common(struct pcnet_priv *lp)
printf("%s: TIMEOUT: controller reset failed\n", lp->name);
}
#ifndef CONFIG_DM_ETH
static int pcnet_init(struct eth_device *dev, bd_t *bis)
{
struct pcnet_priv *lp = dev->priv;
@ -571,3 +582,117 @@ int pcnet_initialize(bd_t *bis)
return dev_nr;
}
#else /* DM_ETH */
static int pcnet_start(struct udevice *dev)
{
struct eth_pdata *plat = dev_get_platdata(dev);
struct pcnet_priv *priv = dev_get_priv(dev);
memcpy(priv->enetaddr, plat->enetaddr, sizeof(plat->enetaddr));
return pcnet_init_common(priv);
}
static void pcnet_stop(struct udevice *dev)
{
struct pcnet_priv *priv = dev_get_priv(dev);
pcnet_halt_common(priv);
}
static int pcnet_send(struct udevice *dev, void *packet, int length)
{
struct pcnet_priv *priv = dev_get_priv(dev);
int ret;
ret = pcnet_send_common(priv, packet, length);
return ret ? 0 : -ETIMEDOUT;
}
static int pcnet_recv(struct udevice *dev, int flags, uchar **packetp)
{
struct pcnet_priv *priv = dev_get_priv(dev);
return pcnet_recv_common(priv, packetp);
}
static int pcnet_free_pkt(struct udevice *dev, uchar *packet, int length)
{
struct pcnet_priv *priv = dev_get_priv(dev);
pcnet_free_pkt_common(priv, length);
return 0;
}
static int pcnet_bind(struct udevice *dev)
{
static int card_number;
char name[16];
sprintf(name, "pcnet#%u", card_number++);
return device_set_name(dev, name);
}
static int pcnet_probe(struct udevice *dev)
{
struct eth_pdata *plat = dev_get_platdata(dev);
struct pcnet_priv *lp = dev_get_priv(dev);
u16 command, status;
u32 iobase;
int ret;
dm_pci_read_config32(dev, PCI_BASE_ADDRESS_1, &iobase);
iobase &= ~0xf;
lp->uc = map_physmem((phys_addr_t)&lp->ucp,
sizeof(lp->ucp), MAP_NOCACHE);
lp->dev = dev;
lp->name = dev->name;
lp->enetaddr = plat->enetaddr;
lp->iobase = (void *)dm_pci_mem_to_phys(dev, iobase);
flush_dcache_range((unsigned long)lp,
(unsigned long)lp + sizeof(*lp));
command = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
dm_pci_write_config16(dev, PCI_COMMAND, command);
dm_pci_read_config16(dev, PCI_COMMAND, &status);
if ((status & command) != command) {
printf("%s: Couldn't enable IO access or Bus Mastering\n",
lp->name);
return -EINVAL;
}
dm_pci_write_config8(dev, PCI_LATENCY_TIMER, 0x20);
ret = pcnet_probe_common(lp);
if (ret)
return ret;
return 0;
}
static const struct eth_ops pcnet_ops = {
.start = pcnet_start,
.send = pcnet_send,
.recv = pcnet_recv,
.stop = pcnet_stop,
.free_pkt = pcnet_free_pkt,
};
U_BOOT_DRIVER(eth_pcnet) = {
.name = "eth_pcnet",
.id = UCLASS_ETH,
.bind = pcnet_bind,
.probe = pcnet_probe,
.ops = &pcnet_ops,
.priv_auto_alloc_size = sizeof(struct pcnet_priv),
.platdata_auto_alloc_size = sizeof(struct eth_pdata),
.flags = DM_UC_FLAG_ALLOC_PRIV_DMA,
};
U_BOOT_PCI_DEVICE(eth_pcnet, supported);
#endif